Simple Simulation

Simple Simulation is about recovering the Old Iron, a wrecked ship on an unfamiliar planet. You dig into the planet, turn ore into production lines, repair the ship and leave—or stay to keep mining.

Dig into the planet

You start with a tractor laser and a conveyor belt. The laser is your only tool, and the depth it can reach determines how deep you can build. Rock gets harder and ore richer the deeper you go.

Build production lines

You begin by digging copper by hand and can develop a fully automated production line. Upgrades extend the line rather than making you stronger, until you are running a machine with no visible edge.

Relics and changing rules

Relics buried in the planet each cost something to take and rewrite a single rule. Their effects can concern depth, power, logistics or defense, so the rules differ from run to run even though the planet stays the same.

Choose your defenses

Something falls from the sky every so often. You can raise shields, mount turrets and hold the line against each wave, or switch the threats off and focus on digging.

Repair the Old Iron

You restore the wreck stage by stage until it can light its engines. Once you leave, you can also choose to remain on the planet and continue mining.